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KMID : 0903620000410040401
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Journal of the Korean Society for Horticultural Science
2000 Volume.41 No. 4 p.401 ~ p.405
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Shoot Growth and Fruit Characteristics of ´ Fuyu ´ Persimmon as Affected by the Size of Bearing Mother Branches and the Time of Fruit - load Adjustment
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김성철/Kim, Sung Chul
강성모/박두상/서광기/최성태/안광환/송원두/Kang, Seong Mo/Park, Doo Sang/Seo, Kwang Ki/Choi, Seong Tae/Ahn, Kwang Hwan/Song, Won Doo
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Abstract
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Effects of fruit-load adjustment time by the size of mother branches were investigated to improve fruit quality and shoot growth of persimmon (Diospyros kaki cv. Fuyu). Mother branches were grouped into small and large ones; 14.7 to 17.4 ㎝ and 22.2 to 41.7 ㎝ in length, and 0.52∼0.57 ㎠ and 0.94∼1.02 ㎠ in cross-sectional area at the base, respectively. Fruit-toad was adjusted at five times from bud-thinning on May 20 to fruit-thinning on July 8. Effect of fruit-load adjustment time on shoot and leaf growth was more pronounced in large mother branches. Total shoot growth and leaf area increased especially when bud-thinned on May 20. Irrespective of the size of mother branches, the earlier adjustment of fruit load resulted in larger fruits at harvest. However, the effect of bud-thinning in increasing fruit weight was more significant in large mother branches: fruits weighed 155.7 g when thinned on July 8, whereas they weighed 199.5 g when bud-thinned on May 20. It was concluded that earlier control of fruiting was more important as the size of a mother branch increased.
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